...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
BOOST_VARIANT_DO_NOT_USE_VARIADIC_TEMPLATES — If this macro is defined, then library won't use C++11 variadic templates.
Users may define this macro to make
BOOST_VARIANT_ENUM_PARAMS
and BOOST_VARIANT_ENUM_SHIFTED_PARAMS
expand
to a comma-separated sequence instead of variadic templates. Define this macro if
your compiler has problems with compilation of variadic templates.
// In header: <boost/variant/variant_fwd.hpp>
BOOST_VARIANT_DO_NOT_USE_VARIADIC_TEMPLATES